we've seen, you know, as the debate -- the debate coming in, we've seen the republicans led by rubio lay down their red lines and they've said we're not going to have immigration reform without a tighter, more secure border. and if you really listen to what they're saying, they're saying 100% sealed border which is first of all, logistically impossibility. second of all, it would cost hundreds of billions of dollars. it might not be surprising, but then you realize that the border has completely transformed from six years ago when congress last debated immigration. it's a completely different border now. one of the reasons is that obama has showered resources on it, you know, record resources, $73 billion. we have nine drones, ten drones patrolling the border, 650 miles of fence. he's doubled the number of towers. >> how much more secure, how tighter can it get? >> how tighter can it get? well, it's a hard question to answer, too, because fewer people have been coming from mexico. and part of that is the bad economy in the u.s. there's just fewer jobs. part of that is a good economy in mexico. part of it's our enforcement.